TI GASSENSOREVM

Rajeev Bhalla1

Prodigy 50 points

I purchased the TI GASSENSOREVM

Out of the box it is configured to measure CO

What changes in hardware or firmware are required to measure O2

I have the App and the O2 sensors

over 8 years ago

0 LeonardEllis over 8 years ago

TI__Guru 71526 points

Hello Rajeev,

Please see Section 1.2.1 in the Ref Design Guide: www.ti.com/lit/ug/snoa922/snoa922.pdf . Then see Sections 1.4 including 1.4.1:

NOTE: The default firmware and the iOS software in the Gas Sensor Platform from TI are designed to support the CO-AF from Alphasense (http://www.alphasense.com/industrialsensors/alphasense_sensors.html) as well as the O2-A2 from Alphasense. Customers can easily update the firmware and the iOS software to support additional sensor types. For firmware updates, see Section 7.2.

and Section 7.2.

~Leonard

0 Tim Love over 8 years ago in reply to LeonardEllis

TI__Expert 5340 points

Hello Rajeev,

To add on to Leonard's comments, please see the note on page 33 of the Ref Design Guide:

The firmware has a case statement to easily change from a CO sensor to an O2 sensor, as shown in Figure 39. Note the x in front of the CO option.

Within the firmware, you can change the case statement to use the O2 sensor.

Regards,

Tim

0 Rajeev Bhalla1 over 8 years ago in reply to Tim Love

Prodigy 50 points

Thank you Tim -

When the O2 firmware is loaded into the gas sensor. Is there something on the iOS app that tells as to what firmware (O2 vs CO) it is connected to.

In other words how can you tell whether you are connected to a O2 or CO sensor.

Simulation, hardware & system design tools

Simulation, hardware & system design tools forum

TI GASSENSOREVM